Rosair Georgina M, Scott Greig, Welch Alan J
Institute of Chemical Sciences, School of Engineering & Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, Scotland.
Acta Crystallogr C Struct Chem. 2015 Jun;71(Pt 6):461-4. doi: 10.1107/S2053229615008724. Epub 2015 May 13.
In the title compound, [Rh(C2H11B9)(NO3)(C18H15P)2]·2.2CH2Cl2, studied as a 2.2-solvate of what was assumed to be dichloromethane, the nitrate ligand lies cis with respect to both cage C atoms. Accordingly, the compound displays a pronounced preferred exopolyhedral ligand orientation (ELO) which is traced to both the greater trans influence of the cage B over the cage C atoms and the greater trans influence of the triphenylphosphane ligands over the nitrate ligand. The overall molecular architecture therefore agrees with that of a number of similar 3-L-3,3-L'2-3,1,2-closo-MC2B9H11 species in the literature.
在标题化合物[Rh(C₂H₁₁B₉)(NO₃)(C₁₈H₁₅P)₂]·2.2CH₂Cl₂中,该化合物被研究为假定的二氯甲烷的2.2溶剂化物,硝酸根配体相对于笼状结构的两个C原子呈顺式排列。因此,该化合物表现出明显的优先外多面体配体取向(ELO),这可归因于笼状结构中B对笼状结构C原子的较大反位影响以及三苯基膦配体对硝酸根配体的较大反位影响。因此,整体分子结构与文献中许多类似的3-L-3,3-L'₂-3,1,2-闭式-MC₂B₉H₁₁物种的结构一致。